-------- Original Message --------
Subject: Re: GPA possible based on subset of landmarks?
Date: Mon, 27 Feb 2012 14:46:13 -0500
From: Dennis E. Slice <dsl...@morphometrics.org>
To: morphmet@morphometrics.org
The set of primary points is the unit that is scaled.
In the missing data code, scaling is done on the basis of the common
primary points relative to the size of the available primary points in
the reference. For that code in the new version, back transforming
didn't give the exact original answer, so I didn't make it available and
haven't had the time to work on it. It worked in the window's version,
but primary/secondary point management is MUCH more complicated.
-ds
On 2/27/12 2:41 PM, morphmet wrote:
-------- Original Message --------
Subject: Re: GPA possible based on subset of landmarks?
Date: Mon, 27 Feb 2012 14:01:57 -0500
From: annat haber <anna...@gmail.com>
To: morphmet@morphometrics.org
Ah, there you go. Sorry, didn't see it before. Thanks, Dennis.
Out of curiosity, How do you incorporate the size scaling? Do you
size-scale the complete configuration based on the centroid size of the
subset?
Thanks
Annat
On Mon, Feb 27, 2012 at 8:43 PM, morphmet
<morphmet_modera...@morphometrics.org
<mailto:morphmet_modera...@morphometrics.org>> wrote:
-------- Original Message --------
Subject: Re: GPA possible based on subset of landmarks?
Date: Mon, 27 Feb 2012 13:40:04 -0500
From: Dennis E. Slice <dsl...@morphometrics.org
<mailto:dsl...@morphometrics.org>>
To: morphmet@morphometrics.org <mailto:morphmet@morphometrics.org>
All of my programs since (at least) GRF-ND have done this, the latest
being the alph test version of Morpheus and the earlier windows version.
The programs support two landmark attributes - primary/secondary.
Primary points are used in the calculation, secondary points are just
carried along.
This is much simpler in the newer (alpha) version:
DEMOTE POINT i OBJECT *
PROMOTE POINT i OBJECT *
LIST POINTREPORT
Hmm, I need to update the alpha version (and call it beta) as my own
version has lots of new features including OPA/GPA superimposition (no
missing data), user-defined variables, batch processing, etc.
-ds
On 2/27/12 12:21 PM, morphmet wrote:
-------- Original Message --------
Subject: GPA possible based on subset of landmarks?
Date: Thu, 16 Feb 2012 18:36:59 -0500
From: Dominique Adriaens <dominique.adria...@ugent.be
<mailto:dominique.adria...@ugent.be>>
To: <morphmet@morphometrics.org <mailto:morphmet@morphometrics.org>>
Dear all,
Does anyone know how it would be possible to perform GPA on a set of
landmark configurations, where the actual GPA is performed based
on a
subset of landmarks in the configurations but where the other
landmarks
are modified accordingly (but are not involved in the GPA
itself). We
want to combine different sets of digitised landmark configurations,
being a set of landmarks on bony elements (which comprise a
subset of
landmarks shared in all configurations) and different sets of
landmarks
on muscles (a sequence of images are used, where muscles are
subsequently peeled off). The final goal is then to pool all the
muscle
landmarks with that shared set of bony landmarks into one
dataset, after
they have been superimposed based on the coordinates of the
shared ‘bony
landmarks’.
Any suggestion would be welcome!
Thanks and best regards
Dominique
*Prof. Dr. Dominique Adriaens*
Ghent University
Evolutionary Morphology of Vertebrates & Zoology Museum
K.L. Ledeganckstraat 35, B-9000 Gent
BELGIUM
tel: +32 9 264.52.19 <tel:%2B32%209%20264.52.19>, fax: +32 9
264.53.44 <tel:%2B32%209%20264.53.44>
E-mail: dominique.adria...@ugent.be
<outbind://5-__000000002B873A8E03CAD411AE9E00__5004995AACC4103900/dominique.__adria...@rug.ac.be
<mailto:dominique.adria...@rug.ac.be>>
URL: http://www.fun-morph.ugent.be/
http://www.zoologymuseum.__ugent.be/
<http://www.zoologymuseum.ugent.be/>
http://www.evolutietheorie.be/
Logo labo klein
--
Dennis E. Slice
Associate Professor
Dept. of Scientific Computing
Florida State University
Dirac Science Library
Tallahassee, FL 32306-4120
-
Guest Professor
Department of Anthropology
University of Vienna
-
Software worth having/learning/using...
Linux (Operating System: Ubuntu, CentOS, openSUSE, etc.)
OpenOffice (Office Suite: http://www.openoffice.org/)
R package (Stats/Graphics environment: http://www.r-project.org/)
Eclipse (Java/C++/etc IDE: http://www.eclipse.org/)
Netbeans (Java/C++/etc IDE: http://netbeans.org/)
Zotero (FireFox bibliographic extension: http://www.zotero.org/)
==============================__==========================
--
Dennis E. Slice
Associate Professor
Dept. of Scientific Computing
Florida State University
Dirac Science Library
Tallahassee, FL 32306-4120
-
Guest Professor
Department of Anthropology
University of Vienna
-
Software worth having/learning/using...
Linux (Operating System: Ubuntu, CentOS, openSUSE, etc.)
OpenOffice (Office Suite: http://www.openoffice.org/)
R package (Stats/Graphics environment: http://www.r-project.org/)
Eclipse (Java/C++/etc IDE: http://www.eclipse.org/)
Netbeans (Java/C++/etc IDE: http://netbeans.org/)
Zotero (FireFox bibliographic extension: http://www.zotero.org/)
========================================================
